Chances of

Hello everyone. I’ve just started and I’m trying to get a hang of everything, so please inform me when you see something that needs to be fixed.
First, I attend a foreign language high school in South Korea (if you guys all know what it is) and am preparing as an international student for American colleges, universities in England, etc. Korea’s high school system is consisted of 3 years, starting from sophomore to senior years. Also, the semester starts in March, different from the American system. And I’m currently a sophomore. I have to take basically two curriculums at the same time, the one every other student at the school does and one for only the international preparation class. We take regular classes 8-4 p.m. and I.P. classes 4-10:20 p.m. It’s pretty grueling and it totals up about 20 subjects each for one semester.

Extracurriculars (Clubs)
Mock Trial
Lacrosse
Mathematics
IT Business
AT Business
Korean Traditional Instrument
Helping elementary school students study

GPA
Didn’t come out yet, but what’s a necessary GPA to get into Princeton, or other Ivy League schools?

AP
I take AP classes from June, how many should I take for one year?

SAT scores
Please recommend a score for Pton

And as an international student, can you guys tell me everything necessary for preparing for Princeton or other prestigious schools? And please explain about Princeton economics and chances of getting in there. I would like a most reasonable answer and you don’t have to encourage me. Thank you.